Display screen or portion thereof with a gaming machine interface



The present application is related to U.S. patent application Ser. No. 16/557,178, filed Aug. 30, 2019, entitled “Systems and Methods for Providing a Feature Game,” the disclosure of which is hereby incorporated by reference in its entirety.

The FIGURE is a front view of a display screen or portion thereof with a gaming machine interface showing our new design.

The rectangular broken-line perimeter illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining broken lines represent elements of the gaming machine interface that form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with a gaming machine interface, as shown and described. 